You want to apply a "lowpass" filter through the EQ. The muffled effect underwater comes from the lowpass, which cuts out higher frequencies and muffles vocal formants. See https://youtu.be/fBVexeNj7wE?t=51 What is the "EQ"? I'm sorry if it's super obvious; I'm kind of new to LM...

Hello,

I am trying to figure out how to add a muffle effect to something, similar to the "FX" control in Music Maker Jam.

Thanks in advance,
-Dolphin